Internal Hex, Internal Torx, External Hex
1 ", 4 mm, 5/16 ", 5/8 ", 1-3/8 "
1/4, 2-1/2, 1/2, 3/8, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 13 mm, 4-1/8 in, 39 mm, 1-3/8 in
4-Point, 6-Point, 12-Point, 7-Point, 8-Point
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